This is an odd one. In Batman Returns the Bat finds himself in a tussle with Catwoman. He's thrown from the roof of a building, as per usual, and while dangling there at his feline foe's mercy, he tosses an incendiary gel packet at her arm which is apparently napalm, burning the villainess' shoulder as a result. 'Cause that's totally the kind of thing you do to a girl you have a crush on, right comics nerds?